fix search() in SimpleSearch
fix tests for TaskList
change timestamp format
invert priority values
improve the sorting algorithm
split rendering of grouped by date ListView into ListViewGroupedByDate
move some tests from ListView/testControl.js to ListViewGroupBuDate/testControl.js
add test for date with timezone
fix APanel
fix FastTask.View
fix PopupDialog
fix SimpleSearch.View and Control
fix date() utils function
rename suite names
add unit tests for Task::upgrade()
change tests to test all sort() cases
update coverage report
make version upgrade sensitive to version number not version string